William s



' (No Model.)

W. s. SCALES.

ELECTRIC-CONTROLLING AND REGULATING DEVICE FOR PENDULUMS.

No. 366,513. Patented Jul 12, 1887.

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UNITED STATES PATENT OFFIGEQ.

WILLIAM S. SCALES, OF SOMERVILLE, MASSAGHU$ETTS, ASSIGN OR'TO THE SYNOHRONOUS TIME COMPANY. I

ELECTRIC CONTROLLING AND REGULATING DEVICE FOR PENDULUMS.

EPECIPICATION forming part of Letters Patent No. 366,513, dated July 12, 1887.

Application filed September 2, 1886. Serial No. 212,475. (No model.)

To all whom, it may concern:

Be it known that I, WILLIAM S. SCALES, of Somerville, county of Middlesex, and State of Massachusetts, have invented an Improvement in Controlling Devices for Clocks and other Regulators, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

This invention has for its object to construct an apparatus for controlling or mechanically changing the regulating member of a clock or other motor or machine that it may take a gaining or losing rate relative to its prior per- I5 formance, to thereby increase or diminish the speed of the machine.

The invention is herein shown in connection with the regulating member or pendulum of a clock, and when arranged for this pur- 2o pose it consists, essentially, of a pivoted'bar carrying a pivoted pushpoint, which latter co-operates With a regulating-point secured to a rotating shaft-as, for instance, to the minute-hand arbor of a clock.

The corresponding faces or ends of the regulating-point and of the push-point are wedgeshaped, or they may be conical, so that as the push-point is moved to strike theregulating point it either meets it squarely, or else fol- 0 lows upon one or the other side of the said regulating-point, and the push point is turned in one or the other direction.

If the regulating-point is in a true vertical position at the moment the push-point de scends, the points will strike, and the pushpoint will not be altered as to its position. A rod joins the pivoted push-point with a pawlcarrier, which latter has two pawls oppositely positioned with relation to each other, one or 40 the other of which may be moved into engagement with a toothed wheel secured to a shaft having a screw-threaded end which turns ina nut fixed to one end of a pivoted regulatinglever, the opposite end of said regulating-lever being provided with two pins or studs, betweenwhich lies the suspensionspring of a pendulum, so that as the push-point is turned on its pivot in one or the other direction by contact with the regulating-point one or the other pawl is caused to engage the toothed toward each other.

wheel and thereby turn the shaft in one or the other direction, and its screw-threaded end turning in the nut fixed to the pivoted regulating-lever will raise or lower one end of the said regulating-lever to thereby. increase or diminish the vibrating length of the penduhim.

The pivoted bar carrying the push-point may be moved at determinate intervals.

In the present instance it is shown as moved by an electro-magnet; but it may be moved by other well-known means, according to the use to which the said controlling device is applied, for the shaft rotated in one or the other direction according to any variation in rela- 6 5 tive position between the push-point and the regulating-point may be employed as a mechanical movement to control the speed or movement of other regulating members than a pendulum, the regulating-point being driven at a speed which it is the object of the regulating member to control.

Figure 1 shows in side elevation an apparatus for controlling the regulating member of a machine or motor, a pendulum being shown as said regulating member; Fig. 2, a crosssection of the device, taken on the dotted line x 00, Fig. 1; Fig. 3, a detail of the pawlcarrier and its pawls; Figs. at and 5, details, to be referred to.

The bar a, pivoted upon the cross-piece a", (see dotted lines, Fig. 1, and full lines, Fig. 2,) fixed to a suitable frame, a, and to an upright, a is notched or cut away near one end to present two limiting-stops, a" a, pointing S5 A wedge-pointed pushpoint, I), is pivoted upon the said pivoted bar a between the two limiting-stops a a. The lower extremity of the said push-point bin its descent with the bare strikes the upper ex- 0 tremity of a wedge-pointed regulating-point should the said extremities be in exact line and the push-point is not turned upon its pivot 22; but should the said extremities not be in true vertical position with relation to each other at the moment the push-point b descends and meets the regulating-point, then the push-point will strike one or the other inclined side of the regulating-point c, and the push-point will be turned on its pivot in one or the other direction. The regulatingpoint c is in this instance shown as secured to the cannon-pinion 25, which is mounted upon the minute-hand arbor d of a clock or other usual time-piece and held by friction in usual manner. As the regulating-point c is thus car ried by the cannon-pinion, it may be moved to move the can non-pinion upon the arbor d, and, as usually the minute-hand is also carried by the cannon-pinion, said hand will be set in a determinate position when the regulating-point c is moved. By referring to Fig. 5 the push-point is shown as in its lowermost position, and in descending it has struck one inclined side of the regulating-point, moving both itself and the said regulating-point until the wedge-shaped end of the said regulatingpoint has snugly fitted between the twolimiting-stops a, the puslrpoint at such time having been moved sufficiently to permit the regulating-point to bear against both limitingstops. Vhen the regulating-pointthus bears against both limiting-stops, itlies in true vertical position.

The push-point b is joined with a pawl-carrier, c, by a connecting-rod, c, said pawtcarrier being loosely secured to or turning upon a sha'ft,f, and having two pawls, 2 3, pivoted loosely upon its under side, and pointing in opposite directions.

The pawl-carrier e is provided with a projection, 0 upon opposite sides of which bear two flatsprings, 4L 5, secured to a frame, 6, the said springs acting to keep the said pawl-carrier in its normal position with both pawls disengaged from the toothed wheel. 7

The frame 6, to which the springs4 5 are attached, is secured to apost attached to a frame or strip of metal, 7, bent at each end at substantially right angles and secured to the main frame a, the upwardly-turned portion of the strip 7 at one end receiving a screw, 8, by which the strip is held in position, while the upwardly-turned portion 9 at the opposite end serves as a bearing upon which the pawls rest, or may be pressed by the action of the springs 1O 10. (See Figs. 2 and 3.)

Vhen the pawl-carrier eis moved in one or the other direetiomowing to the turning of the push-point b on its pivot, as described,one or the other of the pawls 2 3 will engage the teeth of a wheel, i, secured to the shaft], and turn the said shaft in one or the other direction.

The shaftf is screw threaded at its upper end to turn in a nut, f, loosely connected with the regulatinglever y by a screw or pin, f", the rotation of the shaft f moving the said nut only vertically to turn the regulatingdever g on its pivot g in the upwardly-extended arm {1 secured to the main frame-work a. In this instance the outward. end of the pivoted regulating-lever g is provided with two pins or studs, 23, between which lies the suspension spring 12 of the pendulumbarp. 'Ihe pivoted bar a carries the armature m of an elec tramagnet, in, which may be connected in circuit with a master time-piece, (not shown,) which is arranged to change the condition of the current at predetermined intervals to thereby move the bar a and cause the pushpoint 5 to strike the regulating-point cat predetermined intervals. A spiral spring, a, surrounds the cross-piece a, the extended free end of which bears upon the end of the pivoted bar near the armature to aid in normally keeping the armature disengaged from the magnet.

In the present instance of my invention the regulating-point cis rotated and brought into vertical position once a minute, and, for example, the bar a may be moved once in ten minutes, and should the regulating-point not be in true vertical position at the moment the push-point b is movcd,then the said pushpoint will pass below the extremity ofthe regnlating-point, bearing upon one or the other inclined portion thereof, which turns the said push-point on its pivot, causing one or the other pawl to engage and move the toothed wheel 1', and thereby move the pins 23 at the outer end of the regulatinglever g upward or downward to change the vibrating length of the pendulum.

I do not desire to limit my invention to the use of the apparatus herein described in connection with a time-piecc,as it is obvious that the same may be used for a controlling device for regulators of other machines or motors, and also, if desired, the independently-movable pawlcarricr and its pawls may be omitted, the rod 0 directly joining the shaft 7", or it might be a lever by means of a crank or equivalent.

The magnet in is herein shown in open circuit, and consequently its armature is normally retained retracted by a spring, a, wound around a crossbar, a.

It is also obvious that the extremities of the puslrpoint and of the regulating-point may be of ditferentshape and yet the results herein described be carried out.

I elaim 1. In a controlling device for clocks and other regulators, a pivoted bar, a, means to move it, and a push-point,carried by the said bar, and a rod, 0, moved by the puslrpoint, combined with the movable regulating-point c, with which the said puslrpoint cooperates at intervals, both the said push-point and the said regulating-poi nthaving surfaces, substantially as described, at their ends, whereby when the extremities of the push-point and the regulating-point are out of true vertical position the push-point will be moved to move the rod c in one or the other direction, substantially as described.

2. In a controlling device for clocks or other regulators, a pivoted bar and push-point earried by it, and a regulating-point with which the said push-point cooperates, combined with a shaft, f, means to rotate it from the puslrpoint, and means, substantially as described, operated by said shaft to cause the regulating member to take a gaining or losing rate relative to its prior performance, sub

stantially as described.

3. In a controlling device for clocks or other regulators, a pivoted bar and push-point carried by it, and a regulating-point with which the said push-point co operates, combined with a shaft rotated by the movement of the push-point, and with aregulating-lever moved by said shaft to cause the regulating member to take a gaining or losing rate relative to its prior performance, substantially as described.

4. In a controlling device for regulators, a

pivoted bar and wedgepointed push-point ates, combined with a pawl-carrier and its pawls moved by said push-point, a toothed wheel and shaft, and means, substantially as described, operated by said shaft for causing the regulating member to take a gaining or losing rate relative to its prior performance,

substantially as described.

6. In a controlling device for regulators, a pivoted bar'notched to present two limiting stops, at a, a puslrpoiut carried by it, and regulating-point mounted upon the rotating shaft or arbor, combined with a shaft rotated by the movement ofthe push-point,and means, substantially as described, operated by said shaft for causing the regulating member to take a gaining or losing rate relative to its prior performance, substantially as described.

7. In a controlling device for clocks or other regulators, a pivoted bar and push-point car.- ried by it, and a regulating-point with which the said push-point cooperates, and means, substantially as described, for moving said pivoted bar from adistance, combined with a shaft rotated by the movement of the pushpoint, and with means, substantially as described, operated by said shaft for causing the regulating member to take a gaining or losing rate relative to its prior performance, substantially as described.

8. In a controlling device for clocks and other regulators, a regulating-point rotated by the motor to be regulated, combined with a pushpoint adapted to co-operate with and be moved by the said regulating-point, and means, substantially as described, operated by the move ment of the push-point for changing the speed of the regulating member of the clock or other regulator relative to its prior performance, as set forth.

9. In a controlling device for clocks and other regulators, a regulating-point rotated by the motor to be regulated, and a push point adapted to co-operate with and be moved by the said regulating-point,and means, substantially as described, operated by the movement of the push-point for changing the speed of the regulating member of the clock or other regulator relative to its prior performance, combined with a setting device, substantially as described, for moving the rotating regulatingpoint in one or the other direction, all as and forthe purpose set forth.

10. In acontrolling device for clocks and other regulators, the regulating device moved by the clock or motor, and the setting device for moving or setting said regulating device independent of the movement imparted to it by the motor, combined with the regulating member of the clock or motor,and mechanism actuated by the setting device for causing said regulating member to take a gaining or losing rate relative to its prior performance, substantially as described.

11. In a controlling device for clocks and other motors, a hand-setting device for setting the hands in a determinate position, combined with mechanism actuated by the hand-setting device for causing the regulating member of the clock or regulator to take a gaining or losing rate relative to its prior performance, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

VVILLIAM S. SCALES.

IVitnesses:

BER-NICE J. NoYEs, w C. M. CONE. 

